National Stock Number (NSN) Output Data
NSN:
NIIN:
Item Name:
RING , RETAINING
Definition:
A RESILIENT METAL ITEM, CIRCULAR OR NEARLY CIRCULAR, WHICH IS DESIGNED TO BE INSERTED INTO AN INTERNAL OR EXTERNAL GROOVE AND RETAINED BY ITS OWN SPRING ACTION, OR IT MAY HAVE EXTERNAL PRONGS OR PROJECTIONS DESIGNED TO BE INSERTED INTO A HOLE AND RETAINED BY SPRING ACTION OF THE PRONGS WHICH GRIP BY IMBEDDING INTO THE MATERIAL. FOR ITEMS HAVING INTERNAL PRONGS WHICH PERFORM THE SAME FUNCTION, SEE PUSH ON NUT. IT IS USED TO KEEP AND/OR LOCK A PART(S) IN POSITION, AS A BALL BEARING ON A SHAFT OR IN A HOUSING. SEE ALSO CLIP, RETAINING AND PIN, LOCK. EXCLUDES RING, CONNECTING, ROUND.
Reference/Part Number
| Part Number | CAGE | Status | RNCC | RNVC | DAC | RNAAC | MSDS | SADC |
|---|---|---|---|---|---|---|---|---|
| WSM-255S02PA | 51814 | A | 5 | 1 | E | KZ | ||
| MIL-DTL-27426 | 81349 | M | 4 | 1 | E | ZZ | ||
| M2742620141D | 81349 | M | 2 | 2 | E | ZZ | ||
| RSN-255SP | 80756 | A | 5 | 1 | E | KZ |
CAGE Information
| Code | Company |
|---|---|
| 51814 | SMALLEY STEEL RING CO. |
| 81349 | MILITARY SPECIFICATIONS PROMULGATED |
| 80756 | SPIROLOX INC. |
Federal Supply Class
Title
FASTENING DEVICES
Inclusions:
INCLUDES EYELETS; GROMMETS; AIRCRAFT COWLING FASTENERS; TEXTILE FASTENERS; RETAINING RINGS; THREADED INSERTS.
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| ALBY | USAGE DESIGN | EXTERNAL |
| SURF | SURFACE TREATMENT | PASSIVATED, QQ-P-35 |
| ABKV | OUTSIDE DIAMETER | 2.777 INCHES MINIMUM AND 2.802 INCHES MAXIMUM |
| AARX | INSIDE DIAMETER | 2.377 INCHES MINIMUM AND 2.402 INCHES MAXIMUM |
| MATL | MATERIAL | STEEL, MIL-S-5059, TYPE 302 |
| ACXD | RING STYLE | SPIRAL |
| AWQD | STRENGTH RATING | NOT RATED |
| ABMC | MAJOR THICKNESS | 0.075 INCHES MINIMUM AND 0.081 INCHES MAXIMUM |
| AAGR | CROSS-SECTIONAL SHAPE STYLE | DOUBLE OVAL |
| ALME | MATERIAL HARDNESS RATING | 40.0 ROCKWELL C MINIMUM AND 51.5 ROCKWELL C MAXIMUM |
| AASG | CASEHARDENING INDICATOR | NOT CASEHARDENED |